Electric heater



Patented Feb. 27, 1923.

UNITED STATES ECK A. UMBLE, OF DENVER, COLORADO.

ELECTRIC HEATER.

Application filed May 2,

1 '0 all 2/: 110 m it may concern Be it known that I, Eon Unnmc, a citimm of the United States, residing at Denver, in the county of Denver and btatev oi Colorado, have invented certain new and useful Improvements in Electric Heaters; and I do hereby declare the following to be av full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The object of the invention is to provide a simple and eflicient device for heating metallic. objects by immersion in liquid contained in a tank constituting, or having a lining forming, one terminal of an electrical circuit including a. suit-able source of energy, means being provided for connecting the objectto be heated with the other terminal of the circuit under such conditions as to support the object in an immersed position in the path representing the contents of the receptacle until the desired temperature thereof has been attained to permit of the required worl'i'ing thereof for any purpose which may be contemplated; and with this object in view the invention consists in a construction. combination and relation of parts of which a. preferred embodiment is shown in the accompanying drawings, wherein Figure 1 is a perspective view of a heating apparatus embodying the invention.

igure 2 is a longitudinal sectional view of the same.

A metallic receptacle 10 of copper, brass, zinc or any like material constituting a good conductor of electricity, and adapted to contain an electrolyte or bath of suitable liquid such as water and preferably salt water or brine, constitutes one terminal of an electrical circuit having a conductor wire 11. or its equivalent attached thereto as at 12 and incl uding a. suitable source of electrical energy represented in the drawing by the battery 13, and further as shown in the drawing, said receptacle may constitute the lining of an outer casing 14 of wood or similar insulating or nonconductin: material having at one end uprights or posts 15 for supporting the other terminal 16 of the circuit, consisting in the coi'istruction illustrated of. a metallic rod to which the conductor wire 11 is connected by means of a binding post 17 or the equivalent thereof.

.Said terminal 16, consisting as indicated of a metallic bar, preferably constitutes an element of a clamping device having as the other jaw thereof, a stationary bar 18. also carried by the uprights or standards 15, the rod forming the terminal 16 being movable toward and from the bar 18 for the purpose of clamping an interposed object 19 which in this instance is illustrated as ametallic plate, of which the depending. portion is immersed, as indicated in the drawing. in the liquid bath contained in the receptacle 10.

As illustrated, the extremities of the rod 16 are fitted in carrier blocks 20 which are mounted in guide slots 21 in the upper portions of the uprights or starulards 15 for actuation by screws engaged with the nuts or their equivalents, the carriers 20 preferably being of insulating material so that the current passing tl'iroi'igh the terminal l6 finds a course of progress only through the object 19 to complete the circuit through the liquid contents of the receptacle, and owing to the resistance afforded by the object 19 the latter becomes heated to the extent required for the operation contemplated. Obviously, for the purpose of heat ing objects of diil'ercnt sizes and shapes suitable holding means adapted to be ei'igaged by the clamping elements represented by the terminal rod 16 and the cross bar or jaw 18 ma be employed to the end that the object to be heated or the portion of an object to be heated may be immersed in the contents of the receptacle. Also as indicated and for purposes of convenience may be included a suitable switch in the circuit 11 as iinlicated di:[grammatically at Having thus described the what I claim is 2- 1. An electrical heating apparatus having one terminal including an electrolyte. the opposed terminal. consisting of a rod disposed above the electrolyte, means cooperating with said rod to ItJIlOVilbl) secure a conductor object thereto whereby it will be partly immersed in the electrolyte and partly exposed and constitute resistance in the circuit.

An electrical. heating apparatus comprising a. metallic container having liquid therein and connected to one terminal of an electrical source, a receptacle in non-conducting relation to and supporting the container, vertical posts at one end of the receptacle provided with vertical slots, a bar above the receptacle com'iecting the posts, a

in venti on diurting material supporting the container, vertical posts at one end of the receptacle and having; slots therein, a liar connecting said posts at the lower ends of said slots, .:1

rod connected to the other terminal of the electrical source and located 1n sald slots and cooperating with the bar 111 clamping and supporting an object 11 the liquid and also 20 establishing an electrical connection between the source and said nected to the rod and slidahly mounted 111 said slots, and means for moving the lowers toward and from the bar. 25

object, followers confol- In testimony whereof I afi i my signature in presence of two WltHGSSQS.

ECK A. UMBLE.

lVitnesses Tnos. H. Bnsny, CARROLL B. lvlivrirnnws. 

